Ductile iron castings have been used in almost all major industrial sectors where they require high strength, plasticity, toughness, abrasion resistance, severe heat and mechanical shock, high temperature or low temperature resistance, corrosion resistance and dimensional stability. In order to meet these conditions of use, ductile iron has many grades that offer a wide range of mechanical and physical properties.

Such as the International Organization for Standardization ISO1083 provides most of the ductile iron castings, mainly non-alloy production. Obviously, this range includes high strength grades with tensile strength greater than 800 N / mm and elongation of 2%. The other extreme is a high plastic grade with an elongation greater than 17% and a corresponding lower strength (minimum of 370 N / mm). Strength and elongation are not the only roots of the designer's choice of material, while other decisive important properties include yield strength, modulus of elasticity, abrasion resistance and fatigue strength, hardness and impact properties. In addition, corrosion resistance and oxidation resistance and electromagnetic properties may be critical to the designer. In order to meet these special uses, developed a group of austenitic ductile iron, usually called proud Ni-Resis ductile iron. These austenitic ductile iron, mainly zinc, chromium and manganese alloy, and included in international standards.